Need an answer for the below question from the Australian Taxation law perspective

John owns a convenience shop called City Conv. The following events occurred for John during 2019-2020 financial year. (i) John incurred legal expenses as he was sued for false advertising. (ii) John purchased new fridge to the shop - $800. In addition, his builder added more space to the shop front. This cost him $22,000. (iii) John ordered 1000 new T-shirts with printed City Convs logos for marketing purposes. These costs him $1,500. (iv) John received a City of Sydney fine for putting his sales item for display outside his shop without a permit. He required to apply for a permit to use the footpath.

Required: With reference to relevant legislation and case law advise John on the assessability and/or deductibility of above events. (10 marks, maximum 300 words)